Additional file 1: of The anti-proliferative and anti-inflammatory response of COPD airway smooth muscle cells to hydrogen sulfide

Figure S1. Immunohistochemistry staining of CSE, CBS and MPST in bronchial biopsies from non-smokers, smokers and COPD patients. Photomicrographs showing representative photomicrographs of cystathionine-γ-lysase (CSE), cystathionine-β-synthase (CBS) and 3-mercaptopyruvate sulphur transferase (MPST) staining in the bronchial mucosa from control non-smokers, control smokers with normal lung function and mild/moderate COPD patients. Immune-stained airway smooth muscle cells are indicated by brown staining. Results are representative of those from 13 non-smokers, 14 smokers with normal lung function, 15 mild/moderate COPD patients. Calibration bar represents 20 μm. Graphical representation of the results are shown in the right hand panels. (JPG 332 kb

Additional file 2: of The anti-proliferative and anti-inflammatory response of COPD airway smooth muscle cells to hydrogen sulfide

Figure S2. Further examples of the effect of the H2S donor, NaSH on CBS and MPST protein expression, and activation of extracellular signal–regulated kinase (ERK)–1/2 and p38 mitogen-activated protein kinase (MAPK) in human ASM cells from non-smokers, smokers and COPD patients. ASM cells were incubated with FCS (2.5%) for 1 h and NaSH (100 μM) was added for another 24 h. CBS, MPST (A), Total and phospho–ERK-1/2, total and phospho-p38 and β-actin (B) were detected by Western blotting. (JPG 212 kb